Semi precious stones vs. precious stones

Have you ever wondered what the difference between precious and semi-precious gemstones is?  The classification of gemstones into precious and semiprecious dates back to the 19th century, to differentiate their value.  Diamonds, Emeralds, Rubies and Sapphires are classified as precious stones and have traditionally bee
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Have you ever wondered what the difference between precious and semi-precious gemstones is?  The classification of gemstones into precious and semiprecious dates back to the 19th century, to differentiate their value.  Diamonds, Emeralds, Rubies and Sapphires are classified as precious stones and have traditionally been the most expensive and sought after gemstones. All other gemstones are considered semi-precious. Although this classification is still in use it is not always correct as some semi precious stones have considerably gained in value per carat. 

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